(19)
(11)
EP 1 649 513 A2
(12)
(88)
Date of publication A3:
21.04.2005
(43)
Date of publication:
26.04.2006
Bulletin 2006/17
(21)
Application number:
04778297.4
(22)
Date of filing:
29.06.2004
(51)
International Patent Classification (IPC):
H01L
25/00
(1974.07)
(86)
International application number:
PCT/US2004/022720
(87)
International publication number:
WO 2005/008738
(
27.01.2005
Gazette 2005/04)
(84)
Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
(30)
Priority:
11.07.2003
US 618024
(71)
Applicant:
CREE, INC.
Durham, NC 27703 (US)
(72)
Inventors:
VAUDO, Robert, P.
New Milford, CT 06776 (US)
XU, Xueping
Stanford, CT 06906 (US)
BRANDES, George, R.
Raleigh, NC 27614 (US)
(74)
Representative:
Viering, Jentschura & Partner
Steinsdorfstrasse 6
80538 München
80538 München (DE)
(54)
SEMI-INSULATING GaN AND METHOD OF MAKING THE SAME